package com.studentSystem.mapper;

import org.apache.ibatis.annotations.Mapper;

import java.util.List;

@Mapper
public interface StatisticMapper {
    Integer findcourseGrade(String standard, Long courseId);

    List<String> studentAddressCount(Long classId);

    Integer findStudentAddress(String address, Long classId);

    Integer cLassStudentNum(Long classId, String gender);
}
